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Finding the Fourth Proportional to 672,011.92, 927,405.48 and 381,617.62

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Solution

The fourth proportional to 672,011.92, 927,405.48 and 381,617.62 is: 526,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,011.92 : 927,405.48 = 381,617.62 : x
  2. Step 2: Convert to fraction form
    672,011.92/927,405.48 = 381,617.62/x
  3. Step 3: Cross multiply
    672,011.92x = 927,405.48 × 381,617.62
  4. Step 4: Simplify right side
    672,011.92x = 353,914,272,052.56
  5. Step 5: Solve for x
    x = 353,914,272,052.56/672,011.92
  6. Step 6: Final answer
    x = 526,648.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.